How to check if the device has front and rear facing cameras?

Question

I need to detect if the phone has a front facing camera, and if so, I need to calculate the megapixels. The same thing goes for a rear facing camera.

I know how to get the megapixels of a "Camera" object, but I don't know how to check for the other things.

P.s.: I would also be nice if you know a way to check if the Camera has flash or not, and other cool statistics about the camera

Answer 1

I always try to create helpers check if you have a front Camera:

public static boolean checkCameraFront(Context context) {
    if(context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FRONT)) {
        return true;
    } else {
        return false;
    }
}

Check if you have Camera in your device

public static boolean checkCameraRear() {
    int numCamera = Camera.getNumberOfCameras();
    if(numCamera > 0) {
        return true;
    } else {
        return false;
    }
}

Answer 2

http://developer.android.com/reference/android/hardware/Camera.html#getNumberOfCameras() , introduced in API lvl 9. This gets you the number of cameras

http://developer.android.com/reference/android/hardware/Camera.CameraInfo.html contains information of its facing direction.

http://developer.android.com/reference/android/hardware/Camera.Parameters.html#getPictureSize() is megapixels, if counted

http://developer.android.com/reference/android/hardware/Camera.Parameters.html#getFlashMode() returns null if no flash..

many other parameters can be gotten from the camera object too

http://developer.android.com/reference/android/hardware/Camera.html has step by step instructions for using camera. You can follow these instructions if you understand any object oriented language.